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context: floor adjustlinkrev graph walk during copy tracing
The `_adjustlinkrev` method gains an optional "stoprev" argument. The linkrev
adjustment will give up once this floor is reached. The relevant functions
using `_adjustlinkrev` are updated to pass an appropriate value in the copy
tracing code.
In some private repository, about 10% of the status call triggered the
pathological case addressed by this change. The speedup varies from one call
to another, the best-observed win is moving from 170s to 11s.
The effect of this change can be seen in the public pypy repository, running the
following command:
hg perftracecopies --source 83c9ff0c0206 --destination 59c79103d5b0
before: 3.401753 seconds
after: 2.634897 seconds (-23%)
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Wed, 10 Oct 2018 00:50:37 +0200 |
parents | 4b0fc75f9403 |
children | 47ef023d0165 |
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#!/usr/bin/env python # # An example hgweb CGI script, edit as necessary # See also https://mercurial-scm.org/wiki/PublishingRepositories # Path to repo or hgweb config to serve (see 'hg help hgweb') config = "/path/to/repo/or/config" # Uncomment and adjust if Mercurial is not installed system-wide # (consult "installed modules" path from 'hg debuginstall'): #import sys; sys.path.insert(0, "/path/to/python/lib") # Uncomment to send python tracebacks to the browser if an error occurs: #import cgitb; cgitb.enable() from mercurial import demandimport; demandimport.enable() from mercurial.hgweb import hgweb, wsgicgi application = hgweb(config) wsgicgi.launch(application)